Merge PR #24666 into master

Merge PR #24666 into master

* refs/pull/24666/head:
	include/types: fixed compile warning for signed/unsigned comparison
	osd/PrimaryLogPG: uncommitted dup ops should respond with logged return code
	osd/PrimaryLogPG: propagate error return codes on object copy_get ops
	osd/PGLog: optionally record error return codes for extra_reqids
	osd/osd_types: include PG log return codes in object copy data

Reviewed-by: Sage Weil <sage@redhat.com>